A randomized 25 question test from a pool of 761 questions, good luck!
Which of the network components below would commonly be used as a protocol converter and communication signal converter?
The OSI model describes how a network should be arranged. Which of the layers below concern network topologies the most?
Which of the answers below best represents the first bit sent in a RS-232 asynchronous frame?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the switch interacts with?
SCADA systems have been integrated with various industrial processes. Which of the answers below is best defined as allowing control of remote pump and compressor stations?
There are several data access methods used to transmit data. Which of the answers below can be described as a method that the responding device cannot initiate any communication independently?
There are numerous threats to the security of a DCS. Which of the security measures below controls and supervises network traffic?
There are several layers in the DCS architecture. Which of the levels below would have direct control over the systems FCEs?
In the protocol specifications of Modbus, there are 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the holding registers addresses?
A DCS collects a lot of data during the course of operating. Which of the answers below best represents the number of databases commonly used in a DCS?
The addition of BCC to the message frame increases the efficiency of detecting errors in transmissions. which one of the error check systems employs a calculated total by the receiver in comparison to the total of the received data?
The remote access server in a SCADA system provides WAN access. Which of the environments below would the remote access server reside?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "E"?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will solve scalability, but is still limited because of multiple DA servers and duplication of information requiring an overuse of bandwidth?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to read the input status of coils on a slave device ?
Which of the terms below can be best described as supplies the individual devices with data and power from the trunk line in an H1 transmission system?
There are several layers in the DCS architecture. Which of the levels below would have direct control over the alarming system?
IPv4 and IPv6 are the two current versions of IP. Which of the answers below is the defining difference between the two protocols?
The various DCS networks are vital to any plant or process operating smoothly. Which of the networks below must faster and more reliable than any of the others?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the NIC interacts with?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the gateway interacts with?
During day-to-day operation of an industrial network, some device addresses may change depending on the needs of the system. Which of the answers represents the normal state of a physical address during normal operations?
There has to be a way for data to be communicated to the systems I/O for a HMI application to be effective. Which of the terms below best represents the pool of information for this communication?
Which of the terms below is best described as "losses resulting from the amount of bends in an installation."?
A typical DCS has at least four layers in it's architecture. Valves, switches and transmitters are all under the direct control of which of the layers below?